Remove credo and use mix format, and lint everything

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/eventos_web/controllers/search_controller.ex

@@ -7,14 +7,17 @@ defmodule EventosWeb.SearchController do
   alias Eventos.Events
   alias Eventos.Actors
 
-  action_fallback EventosWeb.FallbackController
+  action_fallback(EventosWeb.FallbackController)
 
   def search(conn, %{"name" => name}) do
     events = Events.find_events_by_name(name)
-    case Actors.search(name) do # find already saved accounts
+    # find already saved accounts
+    case Actors.search(name) do
       {:ok, actors} ->
         render(conn, "search.json", events: events, actors: actors)
-      {:error, err} -> json(conn, err)
+
+      {:error, err} ->
+        json(conn, err)
     end
   end
 end